1313155349 has 4 divisors (see below), whose sum is σ = 1432533120. Its totient is φ = 1193777580.

The previous prime is 1313155321. The next prime is 1313155391. The reversal of 1313155349 is 9435513131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1313155349 - 2¹² = 1313151253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313155849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59688869 + ... + 59688890.

It is an arithmetic number, because the mean of its divisors is an integer number (358133280).

Almost surely, 2^1313155349 is an apocalyptic number.

It is an amenable number.

1313155349 is a deficient number, since it is larger than the sum of its proper divisors (119377771).

1313155349 is a wasteful number, since it uses less digits than its factorization.

1313155349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119377770.

The product of its digits is 24300, while the sum is 35.

The square root of 1313155349 is about 36237.4854122082. The cubic root of 1313155349 is about 1095.0619840784.

The spelling of 1313155349 in words is "one billion, three hundred thirteen million, one hundred fifty-five thousand, three hundred forty-nine".